Mini cycle or full cycle?

[ajroc31]

Two weeks ago my tank died for most part. Electricity went out for few days, and most of the fish, and some corals died. Last Saturday I look out about 50 gals. of water, most of the sand since it was crushed coral. I replaced it with a DSB of about 5 inches, leaving about 20-30 pounds of original sand. THe filter is the same, put back all the LR about 200 pounds. THe Corals and the remaining fish seem to be doing fine, but I am afraid that the tank will go through a cycle again. Can someone tell me , if it will or not. If so, a major one, or just a short mini cycle.

 

[usinkit]

its hard tell. it could either way. how long was the power off for. did you take the rock out and if so for how long?

 

[ajroc31]

The power was off for about 30 hours give and take. I did the rock out for about 12 hours. Most of the sand is new, but I tried to save as much of it as possible, without throwing all the CC back in. I had a mixture of both before.

 

[usinkit]

if the rock was completely out of water for 12 hours i would say you will go through another cycle for how long cant answer that. i would just be prepared to have some saltwater ready if the ammonia does spike. good luck.